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North County RC&SL Page 20 of 64 Public Works/Solid Waste <br />Joint Technical Document County of San Joaquin – Revised July 14, 2025 <br /> <br />Thirty-eight wells were identified within one mile of the landfill site. Screen depths (depth to <br />bottom of screen) varied from 100 feet to 700 feet below ground surface. Seven of the wells <br />appear to be down gradient of the site (west-southwest). First encountered groundwater in these <br />wells varied between 100 feet and 168 feet below ground surface. <br /> <br />The California Department of Water Resources’ (DWR) files were reviewed in 2002 and included <br />in the “Report of Waste Discharge Related to the Permitting and Installation of Composite Landfill <br />Liner System for Area 4 and Future Modules” Appendix A). The DWR files were reviewed again <br />in August 2004 (Kleinfelder) but no new information was obtained during that review. <br />